Code:

[code]

/* Use the math library!

Add code to main.c that displays the sine of 1 radian.

Show the number rounded to three decimal points. It should be 0.841.

The sine function is declared like this: double sin(double x);

*/

#include <stdio.h>

#include <math.h>

double calculatedSin(double x){

```
double radiantOfx = sin(x);
return radiantOfx;
```

}

int main(int argc, const char * argv[]) {

```
double x = 1.0;
printf("Sine of 1 radian is %0.3f \n",calculatedSin(x) );
return 0;
```

}[/code]

Console Output:

[quote]Sine of 1 radian is 0.841

Program ended with exit code: 0[/quote]